Dem
[también conocido como Lem, Ndem,]Clasificación: Isolate
·con amenaza de extinción
·Clasificación: Isolate
·con amenaza de extinción
·Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·
Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/
World Oral Literature Project . http://www.oralliterature.org
The status of the least documented language families in the world ( pp. 177-212 ) . Hammarström, Harald (2010) · Language Documentation and Conservation. 4 http://scholarspace.manoa.hawaii.edu/bitstream/handle/10125/4478/hammarstrom.pdf;jsessionid=76414DD90F95DF076959B1AEB0158091?sequence=1
Glottolog . http://www.glottolog.org/glottolog/
25: Taalkundige Gegevens ( pp. 776-913 ) . C. C. F. M. Le Roux (1950) · In De Bergpapoea's van Nieuw-Guinea en hun Woongebied Leiden: E. J. Brill
Language isolates in the New Guinea region . Harald Hammarström (2017) · In Language isolates edited by Lyle Campbell, Thomas Dougherty, and Alexander D. Smith · London: Routledge